201987640

素因数分解:

$2^3\times 5^1\times {\mathrm{887}}^1\times {\mathrm{5693}}^1$

素因数の和:6591

約数の個数: 32

約数和(自身を含む): 455064480

約数和(自身を除く): 253076840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 887, 1774, 3548, 4435, 5693, 7096, 8870, 11386, 17740, 22772, 28465, 35480, 45544, 56930, 113860, 227720, 5049691, 10099382, 20198764, 25248455, 40397528, 50496910, 100993820, 201987640]

約数ペア:

[(1, 201987640), (2, 100993820), (4, 50496910), (5, 40397528), (8, 25248455), (10, 20198764), (20, 10099382), (40, 5049691), (887, 227720), (1774, 113860), (3548, 56930), (4435, 45544), (5693, 35480), (7096, 28465), (8870, 22772), (11386, 17740)]